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Titolo:
Characterization of diffuse reflectance fiber probe sampling on moving solids using a Fourier transform near-infrared spectrometer
Autore:
Berntsson, O; Danielsson, LG; Folestad, S;
Indirizzi:
Royal Inst Technol, Div Analyt Chem, SE-10044 Stockholm, Sweden Royal InstTechnol Stockholm Sweden SE-10044 SE-10044 Stockholm, Sweden AstraZeneca R&D Molndal, Pharmaceut & Analyt R&D, SE-43183 Molndal, SwedenAstraZeneca R&D Molndal Molndal Sweden SE-43183 SE-43183 Molndal, Sweden
Titolo Testata:
ANALYTICA CHIMICA ACTA
fascicolo: 1, volume: 431, anno: 2001,
pagine: 125 - 131
SICI:
0003-2670(20010308)431:1<125:CODRFP>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
FILM COATING PROCESS; ROTATING SAMPLES; SPECTROSCOPY; POWDERS; SIZE;
Keywords:
FT-NIR spectrometer; interferograms; fiber-optic probes;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
23
Recensione:
Indirizzi per estratti:
Indirizzo: Berntsson, O Royal Inst Technol, Div Analyt Chem, SE-10044 Stockholm, Sweden Royal Inst Technol Stockholm Sweden SE-10044 ckholm, Sweden
Citazione:
O. Berntsson et al., "Characterization of diffuse reflectance fiber probe sampling on moving solids using a Fourier transform near-infrared spectrometer", ANALYT CHIM, 431(1), 2001, pp. 125-131

Abstract

A characterization of the effect of sample movement on spectral response using an FT-NIR spectrometer is presented. The data were evaluated by means of both multivariate data analysis and visual inspection of interferograms and spectra. A fiber-optic probe was used to collect spectra from model samples such as paper, plastic and fine and coarse powders. During controlled movement at velocities between 0.046 and 0.73 m s(-1), it was found that sample movement causes features not normally present in the interferograms. However, it is shown that after transformation to frequency domain single-beam spectra these artifacts are present well outside the near infrared spectral range (10,000-4000 cm(-1)). The implication of these results is that FT-NIR is a suitable technique for process analysis of samples moving with low or moderate velocities. (C) 2001 Elsevier Science B.V. All rights reserved.

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Documento generato il 04/07/20 alle ore 17:47:27